(19)

(11)

EP 3 574 206 A1

(12)

(43) Date of publication: 04.12.2019 Bulletin 2019/49 (21) Application number: 17809296.1 (22) Date of filing: 06.12.2017

(51) International Patent Classification (IPC):  F03B 3/02(2006.01) F03B 11/00(2006.01) (86) International application number: PCT/EP2017/081661 (87) International publication number: WO 2018/137822 (02.08.2018 Gazette 2018/31)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD TN (30) Priority: 24.01.2017 US 201762449835 P 14.06.2017 US 201762519472 P 14.08.2017 US 201762545135 P (71) Applicant: Voith Patent GmbH 89522 Heidenheim (DE)	(72) Inventor: COULSON, Stuart Seven Valleys, PA 17360 (US)